[Nov 30, 2021] Fully Updated Dumps PDF - Latest JN0-421 Exam Questions and Answers
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NEW QUESTION 25
Click the Exhibit button.
Referring to the exhibit, what is the type of the myConfig variable on line 17 of the Python script?
- A. string
- B. template
- C. dictionary
- D. list
Answer: B
NEW QUESTION 26
You want to implement a function that is available in the Junson OS, but not defined in a standard model.
Which statement would you use with YANG to accomplish this task?
- A. deviation
- B. augment
- C. case
- D. choice
Answer: D
NEW QUESTION 27
What are two attributes of the jsd JET service process? (Choose two.)
- A. It executes one API request per session.
- B. It executes APIs from multiple sessions in parallel
- C. It creates a separate thread to service JET application requests
- D. It supports only one client session at a time
Answer: A,C
NEW QUESTION 28
You want to enable an unsigned Python op script named inventory.py that will be stored on a local Junos device.
Which two commands are needed to accomplish this task? (Choose two.)
A)
B)
C)
D)
- A. Option B
- B. Option C
- C. Option A
- D. Option D
Answer: D
NEW QUESTION 29
Click the Exhibit button.
You need to programmatically extract interface information using PYeZ from you MX Series device. You log in and use the show interfaces terse I display xml rpc command and see the information shown in the exhibit.
What is the correct PyEZ syntax to accomplish this task?
A)
B)
C)
D)
- A. Option B
- B. Option C
- C. Option A
- D. Option D
Answer: D
NEW QUESTION 30
Drag and drop
Referring to the exhibit, what should <CHANGEME> be replaced with to correctly print out the exception message Cannot cannot to device ?
- A. ConnectError
- B. PeramissionError
- C. RpcError
- D. CommitError
Answer: D
NEW QUESTION 31
What is the purpose of an _intit_.py file ?
- A. An_init_.py file sets all magic attributes with the _init_prefix with the appropriate default values.
- B. An_init_.py file initializes a Python application with default values for instantiated objects.
- C. An_init_.py file indicates to the Python interpreter that a directory contains Python packages or modules.
- D. An_init_.py file contains strings for additional directories that the Python interpreter adds to sys.path [].
Answer: B
NEW QUESTION 32
A customer has a control machine with a default Ansible installation. During execution of an Ansible module against a Junos device, the Ansible control machine generates the
What is the cause for this error?
- A. router1.example.com was not defined in /etc/ansible/inventory/hosts on the control machine.
- B. router1.example.com was not defined in /etc/hosts on the control machine.
- C. Ansible cannot authenticate to the device.
- D. Ansible cannot connect to the device through NTETCONF
Answer: A
NEW QUESTION 33
The <rpc-reply> XML tag is a member of which NETCONF protocol layer?
- A. Operations
- B. Content
- C. Transport
- D. Messages
Answer: C
NEW QUESTION 34
Click the Exhibit button.
An automation developer is using command-line scripting and wants to briefly survey NETCONF capabilities before running a new task.
Referring to the exhibit, how does the automation developer end the current NETCONF session and go to the next one?
- A. Use the logout command.
- B. Use the <rpc><kill-ession><kill-session></>pc> command.
- C. Use the quit command.
- D. Use the <rpc><kill-ession></close-session></>pc> command.
Answer: B
NEW QUESTION 35
Drag and drop
Referring to the exhibit, the configuration components are displayed in which format?
- A. XML
- B. YANG
- C. YAML
- D. JSON
Answer: D
NEW QUESTION 36
You need to reset all Junson systems in your lab to their factory-default state and then push a new configuration to the device.
Which two Ansible modules would your playbook use to accomplish this task? (Choose two.)
- A. Junos_get_facts
- B. Junos_zeroize
- C. Junos_install_confi
- D. Junos_system_services
Answer: B
NEW QUESTION 37
You are writing a SLAX op script to provide a customized rendition of the show interface output. You want to include a command-line argument named interface and provide it whit the default value of fxp0.
A)
B)
C)
D)
- A. Option B
- B. Option D
- C. Option C
- D. Option A
Answer: A
NEW QUESTION 38
Click the Exhibit button.
Where would the Python code shown in the exhibit be used?
- A. an SNMP script
- B. an op script
- C. an event script
- D. a commit script
Answer: A
NEW QUESTION 39
To which component(s) does the JET service APIs provide access?
- A. XML APIs
- B. forwarding plane
- C. control plane
- D. YANG modules
Answer: A
NEW QUESTION 40
What are two format distinctions to know when using YAML? (Choose two.)
- A. whit space indentation sensitive
- B. tab indentation allowed
- C. tab indentation not allowed
- D. white space indentation insensitive
Answer: C,D
NEW QUESTION 41
Click the Exhibit button.
You are using RubyEZ to interface with a Junos device, however, you are not successfully connecting to the device.
Referring to the exhibit, what is the problem?
- A. Netconf::SSH.new statement arguments must be hashes.
- B. Netconf::SSH.new statement only expects an IP address of the target device.
- C. Arguments passed to Netconf::SSH.new statement must be referenced as variables.
- D. A Junos::Ez::Provider statement is missing before the Netconf::SSH.nw statement.
Answer: C
NEW QUESTION 42
Which statement describes the relationship between YANG and NETCONF?
- A. YANG models the state and configuration data manipulated by the NETCONF protocol.
- B. YANG is the programming language used to generate base classes to develop the NETCONF protocol.
- C. NETCONF models XML data use to program YANG modules.
- D. NETCONF is the programming language used to create the state and configuration data manipulaterd by YANG.
Answer: D
NEW QUESTION 43
What are three ways for PyEZ to connect to supported Junos devices? (Choose three.)
- A. NETCONF over SSH
- B. JET API
- C. Telnet
- D. Webook
Answer: A
NEW QUESTION 44
You organization is creating a custom YANG module. You are asked to create a leaf node called timeout with a data type of duration.
In this scenario, what is the appropriate syntax for this leaf node?
A)
B)
C)
D)
- A. Option C
- B. Option B
- C. Option D
- D. Option A
Answer: A
NEW QUESTION 45
Which data serialization is used between RubyEZ and a Junos device?
- A. XML
- B. OpenConfig
- C. automated CLI
- D. SNMP
Answer: B
NEW QUESTION 46
You have created an on-box script and want to deploy it on your device. You plan to place it in a directory where the Junson OS can execute it.
Which two privilege levels would be used to accomplish this task? (Choose two.)
- A. super-user
- B. read-only
- C. root
- D. operator
Answer: D
NEW QUESTION 47
Which data serialization method does the Junos CLI use to communicate with the Junos management process (mgd) /
- A. JSON
- B. gRPC
- C. XML
- D. YAML
Answer: C
NEW QUESTION 48
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